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package bjc.utils.funcutils;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.function.BiPredicate;
/**
* Utilities for doing things with files.
*
* @author ben
*/
public class FileUtils {
/*
* @NOTE If it becomes necessary, write another overload for this with
* all the buttons and knobs from walkFileTree.
*/
/**
* Traverse a directory recursively. This is a depth-first traversal.
*
* @param root
* The directory to start the traversal at.
*
* @param predicate
* The predicate to determine whether or not to traverse a
* directory.
*
* @param action
* The action to invoke upon each file in the directory.
* Returning true means to continue the traversal, returning
* false stops it.
*
* @throws IOException
* If the walk throws an exception.
*
*/
public static void traverseDirectory(final Path root, final BiPredicate<Path, BasicFileAttributes> predicate,
final BiPredicate<Path, BasicFileAttributes> action) throws IOException {
Files.walkFileTree(root, new FunctionalFileVisitor(predicate, action));
}
}
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